Roller bearing journal box



A, o. BucKlus ROLLER BEARFING JOURNAL BOX Aug. 29, 1933.

Filed Oct.; 8, 1927 ,5 Sheets-Sheet 1 A. O. BUCKIUS ROLLER BEARINGJOURNAL BOX Filed Oct. 8, 1927 5 Sheets-Sheet 2 3mm: vfier Qjadzka Aug.29, 1933. A. o. BUCKIUS ROLLER BEARING JOURNAL BOX Filed Oct. 8, 1927 5Sheets-Sheet 3 Aug. 29, 1933; A. o. BUCKIUS ROLLER BEARING JOURNAL BOXFiled Oct. 8, 1927 5 Sheets-Sheet 4 I awe/M01:

Jflhari 0. Buai'a'as 1933- A. o. BUCKIUS 1,924,270

ROLLER BEARING JOURNAL BOX Filed Oct. 8, 1927 5 Sheets-Sheet 5 mlflwuwwbcvc:

fllert diam/bias Patented Aug. 29, 1933 UNITED STATES ROLLER BEARINGJOURNAL BOX V v Albert 0. Buckius, Cleveland, Ohio, assigno r toNational Malleable and Steel Castings Company, Cleveland, Ohio, aCorporation of Ohio 7 Application October 8, 1927. "Serial at; 224,809

9 Claims. (o1.,,30s-41 My invention relates to ,rollerbearing journalboxes, and comprises a box provided with means for taking both inwardand outward axle end thrusts against the box parts. My invention isparticularly adapted for use in connection with the present flexibletype of freight car trucks, where a substantial amount of flexibility isprovided between the two side frames of the truck because of its abilityto take up end thrusts in either direction. My improved box alsoprovides novel retaining ring, thrust block and cover parts andcomprises as well various features which 'I shall hereinafter describeand claim. I

In the accompanying drawings, Fig. 1 is a vertical section, on line I-Iof Fig. 2, of a journal box embodying my invention; Fig. 2 is a. plan,partly in section thereof; Fig. 315 an end elevation thereof, partly insection; Fig.

- 4 is an elevation of the inside of the cover;

Fig; 5 is an elevation of the outer side of the thrust block; and Fig.6is aplan of the retaining ring. t

Referring more specifically'to the drawings,-

the-box 2 has tightly pressed against its inner surface 3 theouterroller bearing race4, which at its inner end bears against theshoulder 5 on the box. The inner race 6, preferably has a press fit withthe axle 7, which maybe equipped with a groove 8 to' receive a snap ring9, which provides additional means for holding the race 6 in position.The roller bearings 10, of which I have shown two sets, are heldinposition between the races ,4 and;6 by-the shoulder 5 on the box andtheretaining ring 11,?Which also holds the outer race in position. Theshoulder 15 and ring 11 are recessed at 12 and 13 respectively toprevent'the rollers 10 from wearing shoulders thereon; The outer face-14of the retainer ring 11 lies, almost flush with the surface 15 whichlies in the plane of the mouth of the.box and is held in position bybeing en-m gaged by the inward portion of the bearin'gfa'ce '16 of thecover 17 against'the mouthof the box'. 'The retainer ring 11 alsoprovides a bear ing forthe inner face 18 of the thrust block 19, Theretainer ring 11 in its lower circumference is provided witharc-shap'ed'ribs 20 which seat in similarly shaped recesses 21 in theinner face of "the cover 17 and hear at their ends against the shoulders22 thereon. These ribs 20, reicesses 21 and shoulders 22 are for thepurpose of preventing rotationof the retainingring 11 with the axle'i.

. The lower portion of the ring 11 has also an outward extension 23 witha vertically extending aperture24 therethrough for the wick 25, whichmay be secured and supported therein bythecotter2 6Q The thrust block 19bears on its inner face 18 against the retainer ring 11 and on its outerface 27-,againstthe inner face'28 of the cover 17, while clearanceis'jfprovidedbetween the radial surfaces 29 of block 19 andthecorresponding ,surfaces onthe cover to,.perrriit the cover 17 to bedrawn down over .the"block.19 against the surface 15 of thebox 2, Theblock -19.has a semi-circular: projection 30 intended to seat in' therecess 31 behind the annular shoulder 32 formed on the endof the axleand to bearupon such shoulder '32 and, thereby take up endwiseou'twardthrusts of the'box relative to the axle, while the inward'thrusts ofvthe box relative tov the axleare taken up by the face 33 of the blockvl9, whichjbearsupon the end face 340i the axle; u To prevent rotation ofthe thrust blo'ck"19 with the. axleKandrelatiiretO the cover '17, theblock 119 hasa plurality of radially extending lugs 35 which fit intocorresponding recesses Bfiin'the inner facefof the cover. The block alsohas a central recess or slot 3f! in its lower portion for reception ofthe upper end of the wick 25. Y.

The cover l'lis secured against thegasket' 38 on the-"surface15 ofthehousing 2bygthe,stud ,bolts 39, which are tapped into the housing.

As. the cover is drawn'inwardly by the bolts, 39.

itiwillbe lseen that the surface 15 will engage the outer face 14 oftheretaining ring 11 and hold it in position while permitting sufiicientf clearanceto provide. a take-up between the partsas the gasket 38 iscompressed. The'cover has the. usual oil charging hole 40 andwhen filledthe 0 1 reaches the" level indicatediby the line aa. If the oil levelfallsbelow the. level 1 of the lowermost rollers 10,-the oil will; beled from thesurnp $1 in the bottorn of the box the wick'25 tothe end"face 34 of the axle 7.. Itwill then run off or be thrown oif'the axleagainst the inner annular; surface 4-2 "of the retainer 11 by theinclination. of" whichit will be directed to, the rollers 10."Afteripassing through the roller path the oil will return through thebottom passage 43 to the sump 41.'

It will be seen" that the innersurface 18. of the thrust-block, 19. liessubstantially in, the

plane of the mouth"15 of theKbox, andrthat' accordingly the cover 17'ismade-to containthe thrust block 19. This facilitates-the applicationandremoval of the cover ,l'l a'nd 'the thrust 17 ing directly against thatportionflof the closure -or anyof-theparts of the box.

cations are possible within with said box.

2. blockiQ, since it permits the cover to be taken oif by an endwisemovement when the stud bolt nuts have been removedand the thrust block.

19 may then be lifted vertically to clear its projection fromthesho'ulder 32 on the end of the axlev 7 without interference from theaxle It will also be seen that the meeting surfaces 15 and 16 of the boxand cover are of a character to be brought to bearing by the usualgrinding operation, and that no special machining is required.

. With the improved box shown in Fig. 1, an end thrust to the righttends to pull the box oif the axle 7, for the reasonlthat the force istransmitted from the 'side' frame (not shown) through the inner face 314of the top' lug 45.

of the box, from the box to the outer race 4,

from the outer race to the retainingring 11, from the retaining ring 1 1to thrust block 19, and is resisted by the engagement of I theprojection 30 on the thrust block against the shoulder 32 on the end ofthe axle. End thrust in the opposite direction, to the left in Fig. 1,is conveyed'from the side frame (not shown) to the box through, theouter face 46 of the top lug and is transmitted to'the "cover 17 throughthe studbolts 39, and from. the cover 17 tothe thrust block 19, and fromthe lubricated face 33 of the thrust block 19'to the end 34 of theaxle.. It is thus obvious that boxes made. in accordance with thisihventiona'cle: quately take care of end thrusts ineither direction, andthat it is'impossible forsuch boxes tween the side'frames of such truck.

The terms and expressions which I haveemployed are used as terms ofdescription and not of limitation, and I have ,no intention, in

the use; of such terms and expressions, of. exeluding any mechanicalequivalentsof the features shown and described, or portions thereof, butrecognize that various structural vmodifiinvention claimed. Y What Iclaim is: v 7 1. In a rollerbearing journal. box, an axle having ashouldered end, rollers interposed between said. axle and said box, alid for said box,

an end thrust block between the-end of saidaxle by movement in a planetransverse to the axis of said axle, said lid and box meeting in a planeinwardof the said extension of the thrustblock, whereby removal of saidlidv allows removal of said thrust block withoutinterference 2. In ajournalbox having roller bearings arranged between the journal and. thehousing, a removable end closurefor the box, and a thrust block ha ingbearings on the journal and seatwhich lies opposite the end of thejournal/arid means on said journal cooperating with said thrust. blocktotake up end thrusts in either direction said closure when appliedserving .to clamp said thrust block in position. I

the scope of T the 3. Ina journal box having roller bearings arrangedbetween the journal and the housing, a removable end closure for thebox, and a thrust block positioned directly between the closure and theend of the journal and having a broad, flat bearing substantiallycoextensive withand engaging'the end of the journal and a bearingof atleast equal extentupon the closure, means on said journal providinganother bearing for said thrust block, the said bearings being soarranged as to take up end thrusts in opposite directions. 7

4.,In a journal box having .roller bearings arranged between the journaland the housing,

a removable cover for said box rigidly secured thereto, a thrust blockbetween said cover and the end of the axlegsaid block being clamped inplace by applicationof said cover and-having a bearing against saidcover to transmit end thrust thereto, said thrust block also having anarc-shaped projection for engagement with 'an annular inwardlyfacingsurface on the journal but normally out of contact therewith.

5. In a journal boxhaving rollerbea'ringS arranged between the journaland the housing, a retainer for the bearings lying substantially withinthe mouth of the box; a thrust block for the journal lyingsubstantially, without the mouth of the housing and extending over theend of said journal; and a cover bolted to the housing interlocking withretainer. and thrust block to secure them in the box, said thrust blockhavinga bearing upon said cover in line with theend of said journal.

6.- In a'journal box having roller bearings arranged between the journal'and' the housing, a closure for said box, a unitary end thrust bearingsecured between said box and said. closure and formed with inwardly andoutwardly facing bearing ,surfaces, a rotatable axle within said boxhaving an annular recess adjacent its end forming inwardly and outwardlyfacingthrust surfaces, said surfaces being normally spaced from thesurfaces on said end thrust bearing whereby said axle is capable oflimited endwise movementin either direction relative tothe box;

7. In-a device of the class described a journal box, an axle journalledin said box and having a groove around its periphery near the outer end,a removable end closure for said. box substantially opposite the endface of the journal adapted to be bolted to the box, and a thrustbearing memberQsaid box, cover and. member having cooperating portionsso constructed and arranged that said member will be rigidly clampedinposition by said closure upon secur 'ing the latter to said box, saidbearing member having a thrust surface adapted to cooperate with the endof said axle and another surface adapted to co-operate with a wall ofsaid groove.

8. In a, device of the class described a journal box, an axle journalledtherein, said axle having a groove around: its periphery near one end, 1

roller bearing -members between saidbox and axle, a retaining ringfitting within said box and adapted to retain said members in position,

a thrust bearing'element engaged in said groove and adapted to receivethe thrust of. said box relative to the axle in-both directions, and anend closure adapted to be bolted to said. box, said-closure serving toclamp said element and ring in position and secure the same to said box.

9. In a device of the class described a journal b0x,'an axle journalledtherein,- a detachable closure for the end of said box opposite the endface of said axle, and a thrust block so constructed and arranged inrelation to said box and closure as to be clamped to said box uponattachment of said closure, said block having thrust surfaces forcooperation with surfaces

